Seasonal Weight Restrictions — Michigan County Road Association

MDOT — SWB

Spring Weight Restriction Bulletin #10

Effective Monday, May 13, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways within the entire state of Michigan.

Weight Restrictions are implemented during the spring frost thaw period and are now completed for the 2019 season. A typical timeframe for Spring Weight Restrictions is during the months of February thru May. Specific dates will be determined by weather and road conditions and posted again when the 2020 season starts.
Have a great rest of 2019. Travel safely.

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Effective Wednesday, May 1, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including US-2 from Iron Mountain to St. Ignace. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of US-2 and M-185 on Mackinac Island.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective Friday, April 26, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to the Mackinac Bridge. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the Mackinac Bridge.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective Monday, April 22, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including M-72 from the interchange with M-22, in the Village of Empire, Leelanau County, then east on M-72 to US-131 in the Village of Kalkaska then south on US-131 to the south junction with M-72 then east on M-72 ending at US-23 in the City of Harrisville, Alcona County. . Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the M-72 line.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective Monday, April 15, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including M-20 from the interchange with US-31, Oceana County, East on M-20 to US-131, North on US-131 to M-20, Mecosta County, East on M-20 to US-10, Midland County, East on US-10 to M-25 in Bay City and including the entire thumb area.. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the M-20, US-10 line.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective Monday, April 8, 2019 at 6:00 AM, weight restrictions will be lifted from the southern Michigan border north to and including I-96 at the interchange  of US-31, in the city of Muskegon, Muskegon County, then east on I-96 to I-69 in Clinton County, then continuing east on I-69 ending at the Blue Water Bridge in the city of Port Huron, St. Clair County. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the I-96, I-69 line.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective Monday, April 1st, 2019 at 6:00 AM, weight restrictions will be lifted from the southern Michigan border north to M-43, in the city of South Haven, Van Buren County, then east on M-43 to US-131 in Kalamazoo County, then south on US-131 in Kalamazoo County to I-94 then continuing east on I-94 ending at the interchange of M-102 in the city of Harper Woods, Wayne County. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the M-43, US-131, I-94 line.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective 6:00am Monday, March 18th, 2019 weight restrictions will be imposed and enforced on all state trunk line highways for the entire state of Michigan. 

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-373-6256.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective 6:00am Friday, March 15th, 2019 weight restrictions will be imposed and enforced on all state trunk line highways from the Michigan/Indiana {amp}amp; Ohio line north to and including the Mackinac Bridge.  

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-373-6256.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Effective 6:00am Monday, March 11th, 2019 weight restrictions will be imposed and enforced on all state trunk line highways from the Michigan/Indiana {amp}amp; Ohio line north to and including M-20 from the intersection of US-31 in Oceana County easterly to US-131 in Mecosta County, then north on US-131 to M-20, then continuing east on M-20 to US-127 in Isabella County, then north on US-127 to M-61 in Clare County, then east on M-61 to the intersection of US-23 in City of Standish, Arenac County.

State trunkline highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-373-6256.

— On routes designated as «All Season Routes» (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

— On routes designated as «Seasonal» (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

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Seasonal Weight Restrictions

Contact:

Dan Weingarten, MDOT Office of Communications, 906-250-4809

Agency:

Transportation

March 13, 2019 — The Michigan Department of Transportation (MDOT) and local agencies are enacting additional annual spring weight restrictions to protect roads.

Effective 6 a.m. Friday, March 15, weight restrictions will be imposed and enforced on all state trunkline highways from the Michigan/Indiana and Michigan/Ohio state lines north to and including the Mackinac Bridge. State routes typically carry M, I, or US designations.

In the restricted areas, the following will apply:

  • On routes designated as «all-season» (designated in green and gold on the MDOT Truck Operators Map), there will be no reduction in legal axle weights.
  • On routes designated as «seasonal» (designated in solid or dashed red on the MDOT Truck Operators Map), there will be a posted weight reduction of 25 percent for rigid (concrete) pavements and 35 percent for flexible (asphalt) pavements.
  • All extended permits will be valid for oversize loads in the weight-restricted area on the restricted routes. Single-trip permits will not be issued for any overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length on the restricted routes.

County road commissions and city public works departments put in place their own seasonal weight restrictions, which usually, but not always, coincide with state highway weight restrictions. Signs are generally posted to indicate which routes have weight restrictions in effect.

For weight restriction information and updates, call 800-787-8960, or you can access this information on MDOT’s website at www.Michigan.gov/Truckers, under «Restrictions.» All-season routes are designated in green and gold on the MDOT Truck Operators Map, which is available online. You also may sign up to receive e-mail alerts.

Trucking companies located in New Jersey and Canada can obtain information by calling 517-373-6256.

Road damage caused by heavy vehicles during winter and spring thawing periods is a problem that affects all northern states. Unless a roadway has been designed and constructed for heavy vehicle loads year-round and designated to be an ALL-SEASON ROAD, a significant loss of strength occurs during a seasonal thaw period.

The damage to a road is directly related to the amount and frequency of the loading applied. Michigan law provides that the months of March, April and May are automatically reduced loading months, but the statute also allows the Michigan Department of Transportation and county road commissions to implement those restrictions earlier, or suspend reduced loading, depending upon the weather and road conditions.

Along with reduced loading provisions are reduced speeds. For vehicles over 10,000 pounds operated on seasonally restricted roads, the speed limit drops to a maximum of 35 mph, regardless of the posted limit. Speed, in conjunction with axle and wheel loading, contributes to road damage including the creation of potholes.

When seasonal weight restrictions are imposed, only seasonal transportation permits will be issued by WCRC. During this time frame, all other transportation permits are suspended. All permits must be submitted through www.oxcartpermits.com.

Most of the roadways in Washtenaw County are seasonally restricted.  For further information, please refer to the current WCRC Truck Operator’s Map or contact the Permits Office at (734) 327-6642.

Frost Laws are the Seasonal Weight Restrictions. This law is to help preserve and protect the road systems throughout Michigan. Each county will have its own time period for the restrictions during the thawing and refreezing of the springtime weather.

On roads that have seasonal weight restrictions in effect the per axle weight loading is reduced by 35%. Speed limits are also reduced for every vehicle over 10,000 lbs. gross weight, down to 35 MPH.

Please use this link to the County Road Association of Michigan, for further details of the Seasonal Weight Restrictions law: www.micountyroads.org

Seasonal Weight Restricted Roads

One of the most common business interactions with a county road agency concerns seasonal weight restrictions – sometimes called “frost laws.”

While roads are concrete and asphalt and look indestructible, they can actually be quite fragile in late winter as frost comes out of the ground.  Even strong late-winter sunlight on the dark paved surface has a significant impact on a road.

As frost melts beneath a paved road, the roadbed turns wet and spongy because water is trapped between the pavement and the remaining ice layer beneath.  When trucks and heavy equipment travel over a layer of concrete or asphalt that isn’t well supported beneath, lots of permanent cracks can occur.

Road commissions must strike a balance between “business as usual” and protecting the roads, and most of them employ licensed Professional Engineers (PEs) to make these decisions.  Most usually consult neighboring road agencies, as well.

By law, road agencies can enact weight restrictions on any roads not designed as “all season” roads.  All season roads are much thicker and designed to allow trucking year around.

Seasonal weight restrictions lower axle-loading limits and reduce maximum travel speeds for certain vehicles.  Click here for details about seasonal weight restrictions and their effect on axle loading and speed limits.

Note that some limited classes are exempt from these restrictions after a permit is filed.

For spring weight restriction bulletins from MDOT on the Trunkline System, click here.

For MDOT’s information resource for commercial trucking, click here.


Not
all of the Roads under the jurisdiction of the Ogemaw County Road
Commission will be restricted.

Click
here
 for a complete list of
Non-Restricted Ogemaw County Roads.

Under NO circumstances will any over weight or over width permits be issued during the
seasonal weight
restriction period on any Ogemaw CRC Roads.

For
a recent history of when Weight Restrictions were applied and removed
from Ogemaw County Roads, 
follow
here
.

For a complete list of roads that are  weight
restricted 
click
here.

Weight
Restrictions may or may not be in effect on State Trunkline Roads,
however, all State Roads in Ogemaw County
are exempt from weight
restrictions.  For further information, check the 
MDOT.

CRA video about understanding seasonal weight restrictions.

Seasonal Weight Restrictions - Michigan County Road Association


In an effort to reduce the wear on Michigan’s roads, Seasonal weight
restrictions have been established. The section of law relating to axle
loads is MCL 257.722. 

(7)
Except as provided in this subsection and subsection (8), during the
months of March, April, and May in each year, the maximum axle load
allowable on concrete pavements or pavements with a concrete base shall
be reduced by 25% from the maximum axle load as specified in this
chapter, and the maximum axle loads allowable on all other types of
roads during these months shall be reduced by 35% from the maximum axle
loads as specified. The maximum wheel load shall not exceed 525 pounds
per inch of tire width on concrete and concrete base or 450 pounds per
inch of tire width on all other roads during the period the seasonal
road restrictions are in effect. This subsection does not apply to
vehicles transporting agricultural commodities or public utility
vehicles on a highway, road, or street under the jurisdiction of a
local road agency.
For
the full text of MCL 257.722 Click here


Seasonal Weight Restrictions - Michigan County Road Association

There
are some limited classes that are exempt from these restrictions after
a permit is filed.  Please see the 
County
Road Association of Michigan’s
 web
site for more detail on the Permitting requirements and exempt classes
as well as for up to date information on weight restrictions state wide.

Updates

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers

Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-373-6256.

For the most recent info, Please refer to the:

Calculate Oversize/Overweight Load Regulations and Prices Instantly with Oversize.io

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